7.23×4.8+0.52×73.2 简便计算
问题描述:
7.23×4.8+0.52×73.2 简便计算
答
7.23×4.8+0.52×73.2
=7.23*4.8+0.52*10*7.23
=7.23*(4.8+5.2)
=7.23*10
=72.3